/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 *
 */

// #ifdef __WITH_BLOWFISH

/*
 * Copyright (C) 2005 - Stephen Griffin, i-code.co.uk
 * Copyright (C) 2005 - Raphael Derosso Pereira - thyAPI adaptation
 *                      <raphaelpereira@users.sourceforge.net>
 */

(function(global) {

if (typeof ppc.crypto == "undefined") ppc.crypto = {};

function stringtoints(instring){
    var binary = [];
    var i, ch;
    
    for (i = 0; i < instring.length; i++) {
        ch = instring.charCodeAt(i);
        binary[i >> 2] |= ch << (3 - i % 4) * 8;
    }
    return binary;
}

function intstostring(intvalues){
    var outstring = new String();
    
    for (var i = 0; i < intvalues.length; i++) {
        outstring += String.fromCharCode(intvalues[i] >>> 24,
            (intvalues[i] >>> 16) & 0xff, (intvalues[i] >>> 8) & 0xff,
            intvalues[i] & 0xff);
    }
    return outstring;
}

function base64tobin(codestring){
    var temp, i = 0;
    var binary = [];
    
    while (i < codestring.length * 6) {
        temp = codestring.charCodeAt(i / 6);
        
        if (temp > 47 && temp < 58) 
            temp -= 48;
        if (temp > 62 && temp < 91) 
            temp -= 53;
        if (temp > 96 && temp < 123) 
            temp -= 59;
        
        switch (i & 0x1f) { //i%32
            case 0:
                binary[i >> 5] = temp;
                i += 6;
                break;
            case 28:
                binary[i >> 5] = (binary[i >> 5] << 4) | (temp >> 2);
                i += 4;
                binary[i >> 5] = temp & 0x03;
                i += 2;
                break;
            case 30:
                binary[i >> 5] = (binary[i >> 5] << 2) | (temp >> 4);
                i += 2;
                binary[i >> 5] = temp & 0x0f;
                i += 4;
                break;
            default:
                binary[i >> 5] = (binary[i >> 5] << 6) | temp;
                i += 6;
        }
    }
    return binary;
}

function base64encode(binary){
    var temp, x,
        bincount   = 0,
        codestring = "",
        chars      = "0123456789?@ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    
    while (bincount < binary.length) {
        for (x = 0; x < 2; x++) {
            temp = binary[bincount] >>> 26;
            codestring += chars.charAt(temp);
            temp = (binary[bincount] >>> 20) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 14) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 8) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 2) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount++] & 0x3) << 4;
            temp = temp | (binary[bincount] >>> 28);
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 22) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 16) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 10) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 4) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount++] & 0xf) << 2;
            temp = temp | (binary[bincount] >>> 30);
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 24) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 18) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 12) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = (binary[bincount] >>> 6) & 0x3f;
            codestring += chars.charAt(temp);
            
            temp = binary[bincount++] & 0x3f;
            codestring += chars.charAt(temp);
        }
    }
    return codestring;
}

/**
 * Class: Blowfish
 *
 *	Blowfish cypher class.
 *
 *	Algorithm gently taken from i-code.co.uk. Thanks Stephen!
 *
 */
ppc.crypto.Blowfish = function(){this.init.apply(this, arguments);};
ppc.crypto.Blowfish.prototype = {
    init: function(m){
        this.P;
        this.S;
        this.previous_xHi = 0;
        this.previous_xLo = 0;
    },
    
    /**
     * Encodes the text passed with key
     *
     * @param {String} str The text to be encoded
     * @param {String} pass The key to be used to encode the text
     * @return Base64 encoded string
     * @type String
     */
    encode: function(str, pass){
        var ciphertext = new String(""),
            IV         = new Array(),
            x;
        
        for (x = 0; x < 4; x++) {
            if (typeof(this.customRand) == 'function') {
                IV[x] = this.customRand();
            } else {
                IV[x] = Math.floor(Math.random() * 0xFFFFFFFF);
            }
        }
        
        var key = this.passtokey(pass, IV[2], IV[3], IV[4]);
        IV[4] = key[14];//hashHi
        IV[5] = key[15];//hashLo
        this.initialise(key, IV);
        
        var binary = stringtoints(str);
        this.encipher_array(binary);
        
        return {
            code: base64encode(binary),
            init: base64encode(IV)
        };
    },
    
    /**
     * Decodes a base64 encoded string to the original one, if key is correct
     *
     * @param {String} code The cyphered code
     * @param {String} pass The key to be used
     * @param {Number} init The base64 initialization int
     */
    decode: function(code, pass, init){
        var initialints = base64tobin(init);
        var key = this.passtokey(pass, initialints[2], initialints[3]);
        
        if ((initialints[4] == key[14]) && (initialints[5] == key[15])) { //check password hash
            this.initialise(key, initialints);
            var bincode = base64tobin(code);
            this.decipher(bincode);
            return intstostring(bincode);
        }
        
        return null;
    },
    
    setConstants: function(){
        var s0 = [0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED,
            0x6A267E96, 0xBA7C9045, 0xF12C7F99, 0x24A19947, 0xB3916CF7, 0x0801F2E2,
            0x858EFC16, 0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E, 0x0D95748F,
            0x728EB658, 0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5, 0x9C30D539,
            0x2AF26013, 0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF, 0x8E79DCB0,
            0x603A180E, 0x6C9E0E8B, 0xB01E8A3E, 0xD71577C1, 0xBD314B27, 0x78AF2FDA,
            0x55605C60, 0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440, 0x55CA396A,
            0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE, 0xA15486AF, 0x7C72E993, 0xB3EE1411,
            0x636FBC2A, 0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E, 0xAFD6BA33,
            0x6C24CF5C, 0x7A325381, 0x28958677, 0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B,
            0x66282193, 0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032, 0xEF845D5D,
            0xE98575B1, 0xDC262302, 0xEB651B88, 0x23893E81, 0xD396ACC5, 0x0F6D6FF3,
            0x83F44239, 0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E, 0x21C66842,
            0xF6E96C9A, 0x670C9C61, 0xABD388F0, 0x6A51A0D2, 0xD8542F68, 0x960FA728,
            0xAB5133A3, 0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98, 0xA1F1651D,
            0x39AF0176, 0x66CA593E, 0x82430E88, 0x8CEE8619, 0x456F9FB4, 0x7D84A5C3,
            0x3B8B5EBE, 0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6, 0x4ED3AA62,
            0x363F7706, 0x1BFEDF72, 0x429B023D, 0x37D0D724, 0xD00A1248, 0xDB0FEAD3,
            0x49F1C09B, 0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7, 0xE3FE501A,
            0xB6794C3B, 0x976CE0BD, 0x04C006BA, 0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2,
            0x196A2463, 0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F, 0x6DFC511F,
            0x9B30952C, 0xCC814544, 0xAF5EBD09, 0xBEE3D004, 0xDE334AFD, 0x660F2807,
            0x192E4BB3, 0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB, 0x5579C0BD,
            0x1A60320A, 0xD6A100C6, 0x402C7279, 0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8,
            0xDB3222F8, 0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB, 0x323DB5FA,
            0xFD238760, 0x53317B48, 0x3E00DF82, 0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E,
            0xDF1769DB, 0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573, 0x695B27B0,
            0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0, 0x10FA3D98, 0xFD2183B8, 0x4AFCB56C,
            0x2DD1D35B, 0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790, 0xE1DDF2DA,
            0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8, 0xEF20CADA, 0x36774C01, 0xD07E9EFE,
            0x2BF11FB4, 0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0, 0xD08ED1D0,
            0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7, 0x8FF6E2FB, 0xF2122B64, 0x8888B812,
            0x900DF01C, 0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD, 0x2F2F2218,
            0xBE0E1777, 0xEA752DFE, 0x8B021FA1, 0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6,
            0xCE89E299, 0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9, 0x165FA266,
            0x80957705, 0x93CC7314, 0x211A1477, 0xE6AD2065, 0x77B5FA86, 0xC75442F5, 
            0xFB9D35CF, 0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49, 0x00250E2D, 
            0x2071B35E, 0x226800BB, 0x57B8E0AF, 0x2464369B, 0xF009B91E, 0x5563911D, 
            0x59DFA6AA, 0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5, 0x83260376, 
            0x6295CFA9, 0x11C81968, 0x4E734A41, 0xB3472DCA, 0x7B14A94A, 0x1B510052, 
            0x9A532915, 0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400, 0x08BA6FB5, 
            0x571BE91F, 0xF296EC6B, 0x2A0DD915, 0xB6636521, 0xE7B9F9B6, 0xFF34052E, 
            0xC5855664, 0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A];
        
        var s1 = [0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623, 0xAD6EA6B0, 0x49A7DF7D, 
            0x9CEE60B8, 0x8FEDB266, 0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1,
            0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E, 0x3F54989A, 0x5B429D65, 
            0x6B8FE4D6, 0x99F73FD6, 0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1, 
            0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E, 0x09686B3F, 0x3EBAEFC9, 
            0x3C971814, 0x6B6A70A1, 0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737, 
            0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8, 0xB03ADA37, 0xF0500C0D, 
            0xF01C1F04, 0x0200B3FF, 0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD, 
            0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701, 0x3AE5E581, 0x37C2DADC, 
            0xC8B57634, 0x9AF3DDA7, 0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41, 
            0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331, 0x4E548B38, 0x4F6DB908, 
            0x6F420D03, 0xF60A04BF, 0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF, 
            0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E, 0x5512721F, 0x2E6B7124, 
            0x501ADDE6, 0x9F84CD87, 0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C, 
            0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2, 0xEF1C1847, 0x3215D908, 
            0xDD433B37, 0x24C2BA16, 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD, 
            0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B, 0x043556F1, 0xD7A3C76B, 
            0x3C11183B, 0x5924A509, 0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E, 
            0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3, 0x771FE71C, 0x4E3D06FA, 
            0x2965DCB9, 0x99E71D0F, 0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A, 
            0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4, 0xF2F74EA7, 0x361D2B3D, 
            0x1939260F, 0x19C27960, 0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66, 
            0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28, 0xC332DDEF, 0xBE6C5AA5, 
            0x65582185, 0x68AB9802, 0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84, 
            0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510, 0x13CCA830, 0xEB61BD96, 
            0x0334FE1E, 0xAA0363CF, 0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14, 
            0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E, 0x648B1EAF, 0x19BDF0CA, 
            0xA02369B9, 0x655ABB50, 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7, 
            0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8, 0xF837889A, 0x97E32D77, 
            0x11ED935F, 0x16681281, 0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99, 
            0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696, 0xCDB30AEB, 0x532E3054, 
            0x8FD948E4, 0x6DBC3128, 0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73, 
            0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0, 0x45EEE2B6, 0xA3AAABEA, 
            0xDB6C4F15, 0xFACB4FD0, 0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105, 
            0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250, 0xCF62A1F2, 0x5B8D2646, 
            0xFC8883A0, 0xC1C7B6A3, 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285, 
            0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00, 0x58428D2A, 0x0C55F5EA, 
            0x1DADF43E, 0x233F7061, 0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB, 
            0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E, 0xA6078084, 0x19F8509E, 
            0xE8EFD855, 0x61D99735, 0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC, 
            0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9, 0xDB73DBD3, 0x105588CD, 
            0x675FDA79, 0xE3674340, 0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20, 
            0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7];
        
        var s2 = [0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934, 0x411520F7, 0x7602D4F7,
            0xBCF46B2E, 0xD4A20068, 0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF, 
            0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840, 0x4D95FC1D, 0x96B591AF, 
            0x70F4DDD3, 0x66A02F45, 0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504, 
            0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A, 0x28507825, 0x530429F4, 
            0x0A2C86DA, 0xE9B66DFB, 0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE, 
            0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6, 0xAACE1E7C, 0xD3375FEC, 
            0xCE78A399, 0x406B2A42, 0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B, 
            0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2, 0x3A6EFA74, 0xDD5B4332, 
            0x6841E7F7, 0xCA7820FB, 0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527, 
            0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B, 0x55A867BC, 0xA1159A58, 
            0xCCA92963, 0x99E1DB33, 0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C, 
            0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3, 0x95C11548, 0xE4C66D22, 
            0x48C1133F, 0xC70F86DC, 0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17, 
            0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564, 0x257B7834, 0x602A9C60, 
            0xDFF8E8A3, 0x1F636C1B, 0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115, 
            0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922, 0x85B2A20E, 0xE6BA0D99, 
            0xDE720C8C, 0x2DA2F728, 0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0, 
            0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E, 0x0A476341, 0x992EFF74, 
            0x3A6F6EAB, 0xF4F8FD37, 0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D, 
            0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804, 0xF1290DC7, 0xCC00FFA3, 
            0xB5390F92, 0x690FED0B, 0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3, 
            0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB, 0x37392EB3, 0xCC115979, 
            0x8026E297, 0xF42E312D, 0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C, 
            0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350, 0x1A6B1018, 0x11CAEDFA, 
            0x3D25BDD8, 0xE2E1C3C9, 0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A, 
            0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE, 0x9DBC8057, 0xF0F7C086, 
            0x60787BF8, 0x6003604D, 0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC, 
            0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F, 0x77A057BE, 0xBDE8AE24, 
            0x55464299, 0xBF582E61, 0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2, 
            0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9, 0x7AEB2661, 0x8B1DDF84, 
            0x846A0E79, 0x915F95E2, 0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C, 
            0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E, 0xB77F19B6, 0xE0A9DC09, 
            0x662D09A1, 0xC4324633, 0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10, 
            0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169, 0xDCB7DA83, 0x573906FE, 
            0xA1E2CE9B, 0x4FCD7F52, 0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027, 
            0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5, 0xF0177A28, 0xC0F586E0, 
            0x006058AA, 0x30DC7D62, 0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634, 
            0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76, 0x6F05E409, 0x4B7C0188, 
            0x39720A3D, 0x7C927C24, 0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC, 
            0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4, 0x1E50EF5E, 0xB161E6F8, 
            0xA28514D9, 0x6C51133C, 0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837, 
            0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0];
        
        var s3 = [0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B, 0x5CB0679E, 0x4FA33742, 
            0xD3822740, 0x99BC9BBE, 0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B, 
            0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4, 0x5748AB2F, 0xBC946E79, 
            0xC6A376D2, 0x6549C2C8, 0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6, 
            0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304, 0xA1FAD5F0, 0x6A2D519A, 
            0x63EF8CE2, 0x9A86EE22, 0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4, 
            0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6, 0x2826A2F9, 0xA73A3AE1, 
            0x4BA99586, 0xEF5562E9, 0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59, 
            0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593, 0xE990FD5A, 0x9E34D797, 
            0x2CF0B7D9, 0x022B8B51, 0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28, 
            0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C, 0xE029AC71, 0xE019A5E6, 
            0x47B0ACFD, 0xED93FA9B, 0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28, 
            0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C, 0x15056DD4, 0x88F46DBA, 
            0x03A16125, 0x0564F0BD, 0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A, 
            0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319, 0x7533D928, 0xB155FDF5, 
            0x03563482, 0x8ABA3CBB, 0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F, 
            0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991, 0xEA7A90C2, 0xFB3E7BCE, 
            0x5121CE64, 0x774FBE32, 0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680, 
            0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166, 0xB39A460A, 0x6445C0DD, 
            0x586CDECF, 0x1C20C8AE, 0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB, 
            0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5, 0x72EACEA8, 0xFA6484BB, 
            0x8D6612AE, 0xBF3C6F47, 0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370, 
            0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D, 0x4040CB08, 0x4EB4E2CC, 
            0x34D2466A, 0x0115AF84, 0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048, 
            0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8, 0x611560B1, 0xE7933FDC, 
            0xBB3A792B, 0x344525BD, 0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9, 
            0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7, 0x1A908749, 0xD44FBD9A, 
            0xD0DADECB, 0xD50ADA38, 0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F, 
            0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C, 0xBF97222C, 0x15E6FC2A, 
            0x0F91FC71, 0x9B941525, 0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1, 
            0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442, 0xE0EC6E0E, 0x1698DB3B, 
            0x4C98A0BE, 0x3278E964, 0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E, 
            0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8, 0xDF359F8D, 0x9B992F2E, 
            0xE60B6F47, 0x0FE3F11D, 0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F, 
            0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299, 0xF523F357, 0xA6327623, 
            0x93A83531, 0x56CCCD02, 0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC, 
            0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614, 0xE6C6C7BD, 0x327A140A, 
            0x45E1D006, 0xC3F27B9A, 0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6, 
            0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B, 0x53113EC0, 0x1640E3D3, 
            0x38ABBD60, 0x2547ADF0, 0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060, 
            0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E, 0x1948C25C, 0x02FB8A8C, 
            0x01C36AE4, 0xD6EBE1F9, 0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F, 
            0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6];
        
        this.S = [s0, s1, s2, s3];
        
        this.P = [0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, 0xA4093822, 0x299F31D0, 
            0x082EFA98, 0xEC4E6C89, 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, 
            0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917, 0x9216D5D9, 0x8979FB1B];
    },
    
    encipher: function(x){
        var xHi = x[0];
        var xLo = x[1];
        var Round = 0;
        
        xHi ^= this.P[0];
        
        while (Round < 16) {
            xLo ^= (((this.S[0][xHi >>> 24] + this.S[1][(xHi >>> 16) & 0x0ff])
                ^ this.S[2][(xHi >>> 8) & 0x0ff]) + this.S[3][xHi & 0x0ff]) ^ this.P[++Round];
            xHi ^= (((this.S[0][xLo >>> 24] + this.S[1][(xLo >>> 16) & 0x0ff])
                ^ this.S[2][(xLo >>> 8) & 0x0ff]) + this.S[3][xLo & 0x0ff]) ^ this.P[++Round];
        }
        
        xLo ^= this.P[16 + 1];
        
        x[0] = xLo;
        x[1] = xHi;
    },
    
    encipher_array: function(x){
        var i, count, xHi, xLo, Round, temp;
        
        for (i = 0; (i < x.length) || (x.length % 6); i += 2) {
            xHi = x[i];
            xLo = x[i + 1];
            
            xHi ^= this.previous_xHi;
            xLo ^= this.previous_xLo;
            
            xHi ^= this.P[0];
            
            Round = 0;
            
            while (Round < 16) {
                xLo ^= (((this.S[0][xHi >>> 24] + this.S[1][(xHi >>> 16) & 0x0ff])
                    ^ this.S[2][(xHi >>> 8) & 0x0ff]) + this.S[3][xHi & 0x0ff]) ^ this.P[++Round];
                xHi ^= (((this.S[0][xLo >>> 24] + this.S[1][(xLo >>> 16) & 0x0ff])
                    ^ this.S[2][(xLo >>> 8) & 0x0ff]) + this.S[3][xLo & 0x0ff]) ^ this.P[++Round];
            }
            
            xLo ^= this.P[17];
            
            this.previous_xHi = xLo;
            this.previous_xLo = xHi;
            
            x[i + 1] = xHi;
            x[i] = xLo;
        }
    },
    
    decipher: function(x){
        var i, xHi, xLo, Round, temp;
        
        for (i = 0; i < x.length; i += 2) {
            xHi = x[i];
            xLo = x[i + 1];
            
            xHi ^= this.P[17];
            
            Round = 16;
            
            while (Round > 0) {
                xLo ^= (((this.S[0][xHi >>> 24] + this.S[1][(xHi >>> 16) & 0xff])
                    ^ this.S[2][(xHi >>> 8) & 0xff]) + this.S[3][xHi & 0xff]) ^ this.P[Round--];
                xHi ^= (((this.S[0][xLo >>> 24] + this.S[1][(xLo >>> 16) & 0xff])
                    ^ this.S[2][(xLo >>> 8) & 0xff]) + this.S[3][xLo & 0xff]) ^ this.P[Round--];
            }
            
            xLo ^= this.P[0];
            
            temp = x[i];
            x[i] = xLo ^ this.previous_xHi;
            this.previous_xHi = temp;
            
            temp = x[i + 1];
            x[i + 1] = xHi ^ this.previous_xLo;
            this.previous_xLo = temp;
        }
    },
    
    initialise: function(key, IV){
        var i, j, k, data;
        var block = new Array(2);
        
        this.previous_xHi = IV[0];
        this.previous_xLo = IV[1];
        
        this.setConstants();
        
        for (j = 0, i = 0; i < 16 + 2; ++i) {
            this.P[i] = this.P[i] ^ key[j];
            j = (j + 1) % 14;
        }
        
        for (i = 0; i < 16 + 2; i += 2) {
            this.encipher(block);
            
            this.P[i] = block[0];
            this.P[i + 1] = block[1];
        }
        
        for (i = 0; i < 4; ++i) {
            for (j = 0; j < 256; j += 2) {
                this.encipher(block);
                this.S[i][j] = block[0];
                this.S[i][j + 1] = block[1];
            }
        }
    },
    
    passtokey: function(pass, HiIV, LoIV){
        var binarypassword = stringtoints(pass);
        var block          = new Array(2);
        var key            = new Array(16);
        var i = 0, j;
        
        block[0] = HiIV;
        block[1] = LoIV;
        
        do {
            this.initialise(key, block, 16);
            
            for (j = 0; j < 16;) {
                block[0] ^= binarypassword[i];
                
                this.encipher(block);
                
                key[j++] ^= block[0];
                key[j++] ^= block[1];
            }
        } while (++i < binarypassword.length)
        
        return key;
    }
};

})(this);

// #endif
